{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"conventional","cert_issue_date":"2012-04-27","city":"WASILLA","country_code":"US","county_code":"170","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[{"collateral_type":"Aircraft","doc_type":"Bill of sale (evidence of ownership)","party":"","receipt_date":"2026-09-02"},{"collateral_type":"Aircraft","doc_type":"Bill of sale (evidence of ownership)","party":"","receipt_date":"2026-09-02"}],"eng_mfr_mdl":"","engine_horsepower":null,"engine_maker":"","engine_model":"","engine_thrust_lb":null,"expiration_date":"2028-04-30","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-05-05","maker":"Robinson Helicopter","maker_country":"US","maker_raw":"ROBINSON HELICOPTER","maker_segment":"Helicopter","mfr_mdl_code":"7640120","mode_s_code":"52610300","mode_s_hex":"AB10C0","model":"R44","n_number":"N81191","name":"CASTOR AVIATION LTD","num_engines":1,"other_names":"","plain_english":"N81191 is a Robinson Helicopter R44, a rotorcraft with a piston engine (a helicopter or multicopter). It has 4 seats. It is registered to Castor Aviation LTD, a corporation in Wasilla, Alaska. The registration is valid: it was issued on April 27, 2012 and expires on April 30, 2028. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested. 2 documents are on file: 2 \u00d7 bill of sale (evidence of ownership).","region":"Alaskan","region_code":"5","registrant_type":"Corporation","registrant_type_code":"3","seats":4,"serial_number":"0855","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"AK","status":"Valid registration","status_code":"V","status_short":"Valid","street":"6540 E BEECHCRAFT RD","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00257819","url":"https://staging.data.eflight.com/aircraft/N81191","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"996549330"}